{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1322595",
    "entityType": "User",
    "nonce": "0x39b8288e3a186f73a850289e1e5f30e78001806c323fc666dd3ff736ca3ca9b2",
    "signature": "0x4916dd636efcb563b5ff6026e0a04009da76cd4f9e77ddb973d97ee61c170f680a7348b0a07a7a00c01e93a6ee9398d9046f472043f2f53ad3bcad3484e157671c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}